{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "cell type", "DNA", "RNA", "cell line"], "input": "The proto-oncogene products c-Fos and c-Jun heterodimerize through their leucine zippers to form the AP-1 transcription factor ."}
{"protein": ["proto-oncogene products", "c-Fos", "c-Jun", "leucine zippers", "AP-1 transcription factor"], "cell type": [], "DNA": [], "RNA": [], "cell line": []}